2003 Pathfinder Transmission Cooler Recos

[BurntTimber]

Anybody have one installed after the fact and can make recommendations on brand/where to buy? I'll be towing fairly minimal weight (2000lbs) but I do hit some big hills where I go and it can be quite hot.

I have the 2003 Chilkoot Edition and I installed my hitch and wiring myself if this makes any difference (ie didn't come with towing package).